Home / 31,344.76-43,243.78-20,014.68

Finding the Fourth Proportional to 31,344.76, 43,243.78 and 20,014.68

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Solution

The fourth proportional to 31,344.76, 43,243.78 and 20,014.68 is: 27,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,344.76 : 43,243.78 = 20,014.68 : x
  2. Step 2: Convert to fraction form
    31,344.76/43,243.78 = 20,014.68/x
  3. Step 3: Cross multiply
    31,344.76x = 43,243.78 × 20,014.68
  4. Step 4: Simplify right side
    31,344.76x = 865,510,418.69
  5. Step 5: Solve for x
    x = 865,510,418.69/31,344.76
  6. Step 6: Final answer
    x = 27,612.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.